... been prescribed the dextroamphetamine but it makes me feel tired and depressed and crying all the time. numb fingers and like my brain wont work its horrible. i started on 8 5mg tabs a day have stopped now because they made me feel so bad. they were prescribed as a substitute for speed which i used to buy to make myself feel better which the doctor says that I obviously need because it makes me function normally ( i dont use it to trip on or get high, and it doesnt make me hyper or stay up all night) is there anything else here in the uk that he can prescribe to me that is more like amphetamine and why do the other tabs make me feel so bad any help would be great thankyou madmaria44